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Two polaroids are placed such that their...

Two polaroids are placed such that their planes are parallel to each other with their access of transmission at 30°. If an unpolarised light of intensity `I_0` is incident on first polaroid polarizer then intensity of light that will be transmitted through the second polaroid is

A

`I_0/2`

B

`I_0/8`

C

`3I_0/4`

D

`3I_0/8`

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